fix with new xproto, from http://bugs.gentoo.org/show_bug.cgi?id=225999

$OpenBSD: patch-pTk_mTk_generic_tkBind_c,v 1.1 2008/11/04 10:08:03 sthen Exp $
--- pTk/mTk/generic/tkBind.c.orig	Tue Nov  4 09:10:19 2008
+++ pTk/mTk/generic/tkBind.c	Tue Nov  4 09:12:11 2008
@@ -629,6 +629,9 @@ static int flagArray[TK_LASTEVENT] = {
    /* ColormapNotify */		COLORMAP,
    /* ClientMessage */		0,
    /* MappingNotify */		0,
+#ifdef GenericEvent
+   /* GenericEvent */		0,
+#endif
    /* VirtualEvent */		VIRTUAL,
    /* Activate */		ACTIVATE,
    /* Deactivate */		ACTIVATE,